Implement navigator.languages.

Source/core/frame/DOMWindow.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 345 matching lines @@
 }
 
 void DOMWindow::clearEventQueue()
 {
     if (!m_eventQueue)
         return;
     m_eventQueue->close();
     m_eventQueue.clear();
 }
 
+void DOMWindow::acceptLanguagesChanged()
+{
+    if (m_navigator)
+        m_navigator->setLanguagesChanged();
+
+    dispatchEvent(Event::create(EventTypeNames::languagechange));
+}
+
 PassRefPtrWillBeRawPtr<Document> DOMWindow::createDocument(const String& mimeType, const DocumentInit& init, bool forceXHTML)
 {
     RefPtrWillBeRawPtr<Document> document = nullptr;
     if (forceXHTML) {
         // This is a hack for XSLTProcessor. See XSLTProcessor::createDocumentFromSource().
         document = Document::create(init);
     } else {
         document = DOMImplementation::createDocument(mimeType, init, init.frame() ? init.frame()->inViewSourceMode() : false);
         if (document->isPluginDocument() && document->isSandboxed(SandboxPlugins))
             document = SinkDocument::create(init);
@@ skipping 1527 matching lines @@
     visitor->trace(m_sessionStorage);
     visitor->trace(m_localStorage);
     visitor->trace(m_applicationCache);
     visitor->trace(m_performance);
     visitor->trace(m_css);
     WillBeHeapSupplementable<DOMWindow>::trace(visitor);
     EventTargetWithInlineData::trace(visitor);
 }
 
 } // namespace WebCore